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Finding the Fourth Proportional to 292,509.63, 438,780.04 and 92,845.64

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Solution

The fourth proportional to 292,509.63, 438,780.04 and 92,845.64 is: 139,273.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,509.63 : 438,780.04 = 92,845.64 : x
  2. Step 2: Convert to fraction form
    292,509.63/438,780.04 = 92,845.64/x
  3. Step 3: Cross multiply
    292,509.63x = 438,780.04 × 92,845.64
  4. Step 4: Simplify right side
    292,509.63x = 40,738,814,497.86
  5. Step 5: Solve for x
    x = 40,738,814,497.86/292,509.63
  6. Step 6: Final answer
    x = 139,273.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.